<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <!-- React核心包 最先引入 提供一个对象React -->
    <script src="../react18/react.development.js"></script>
    <!-- React操作DOM的包 提供了一个对象 ReactDOM -->
    <script src="../react18/react-dom.development.js"></script>

</head>
<body>
    <!-- React操作的容器 -->
    <div id="app"></div>

    <script>
        //创建一个虚拟DOM
        const vDom = React.createElement("h1",{},"hello React")
        //把虚拟DOM交给React 渲染到容器中
        const root = ReactDOM.createRoot(document.getElementById("app"))
        root.render(vDom)
    </script>
</body>
</html>